Any of you medics know the improvement on cooldown for the nano regen device for lvl 6 as opposed to lvl 4?
I honestly dont know. However, i do have lvl 6, and i can tell you its worth it. The low cooldown means it is available for use pretty much whenever you need it.
Medigun 6. Just flat-out. Double the range of lvl 5, 1 second revive. Infantry revives at full so you can just nail them and move on. Get MAXs up with an actual survivable amount of HP.... It is awesome.